import { login, logout, getInfo } from '@/api/user'
import { getToken, setToken, removeToken } from '@/utils/auth'
import { resetRouter } from '@/router'

const getDefaultState = () => {
  return {
    token: getToken(),
    name: '',
    avatar: ''
  }
}

const state = getDefaultState()

const mutations = {
  RESET_STATE: (state) => {
    Object.assign(state, getDefaultState())
  },
  SET_TOKEN: (state, token) => {
    state.token = token
  },
  SET_NAME: (state, name) => {
    state.name = name
  },
  SET_AVATAR: (state, avatar) => {
    state.avatar = avatar
  }
}

const actions = {
  // user login
  async login({ commit }, userInfo) {
    const { username, password } = userInfo
    const result = await login({ username: username.trim(), password: password })
    if (result.code === 20000 || result.code === 200) {
      commit('SET_TOKEN', result.data.token)
      setToken(result.data.token)
    } else {
      return Promise.reject(new Error(result.message))
    }
  },
  // login({ commit }, userInfo) {
  //   const { username, password } = userInfo
  //   return new Promise((resolve, reject) => {
  //     login({ username: username.trim(), password: password }).then(response => {
  //       const { data } = response
  //       commit('SET_TOKEN', data.token)
  //       setToken(data.token)
  //       resolve()
  //     }).catch(error => {
  //       reject(error)
  //     })
  //   })
  // },

  // get user info
  async getInfo({ commit, state }) {
    const result  = await getInfo(state.token)
    if(result.code === 20000 || result.code === 200) {
      const { name, avatar } = result.data
      commit('SET_NAME', name)
      commit('SET_AVATAR', avatar)
    } else {
      return Promise.reject(new Error(result.message))
    }
  },

  // getInfo({ commit, state }) {
  //   return new Promise((resolve, reject) => {
  //     getInfo(state.token).then(response => {
  //       const { data } = response

  //       if (!data) {
  //         return reject('Verification failed, please Login again.')
  //       }

  //       const { name, avatar } = data

  //       commit('SET_NAME', name)
  //       commit('SET_AVATAR', avatar)
  //       resolve(data)
  //     }).catch(error => {
  //       reject(error)
  //     })
  //   })
  // },

  // user logout
  async logout({ commit, state }) {
    const result = await logout(state.token)
    if(result.code === 20000 || result.code === 200) {
      removeToken() // must remove  token  first
      resetRouter()
      commit('RESET_STATE')
    }  else {
      return Promise.reject(new Error(result.message))
    }
  },

  // logout({ commit, state }) {
  //   return new Promise((resolve, reject) => {
  //     logout(state.token).then(() => {
  //       removeToken() // must remove  token  first
  //       resetRouter()
  //       commit('RESET_STATE')
  //       resolve()
  //     }).catch(error => {
  //       reject(error)
  //     })
  //   })
  // },

  // remove token
  async resetToken({ commit }) {
      const result = await removeToken()
      if(result.code === 20000 || result.code === 200) {
        commit('RESET_STATE')
      } else {
        return Promise.reject(new Error(result.message))
      }
  },


  // resetToken({ commit }) {
  //   return new Promise(resolve => {
  //     removeToken() // must remove  token  first
  //     commit('RESET_STATE')
  //     resolve()
  //   })
  // }
}

export default {
  namespaced: true,
  state,
  mutations,
  actions
}

